I have followed the Microsoft knowledge base to look into the registry settings for the CD drive and there is no mention of Upper or Lower Filters in the Registry.

I have trawled through the Dell community problems forums but not found anything which helps me directly, although some descriptions of problems closely relate to my problem, but not exactly. Most solutions refer to Windows XP.

How can I restore my Registry settings to include the required Upper and Lower Filter entries for the CD\DVD drive ?

Any help would be much appreciated. It's driving me crazy as I've tried many options but all have failed.

Hi, Thanks for your quick response. I followed the Apple procedures (which is similar to the Microsoft procedures for this problem), but I get the same result.

When I go into the Registry at the point described by Apple regarding the Upper and Lower Filters there are no Filters there so I cannot carry out the procedure for deleting and modifying as described, and yet the problem is exactly as described in the Apple notice you sent to me!

I've used the repair facility on Uninstall/Install in Windows, also I've uninstalled and reinstalled I Tunes but it does not reinstall the Filters . I think they may have to be reinstalled manually or from a Dell untilities disc ??? I've run out of ideas.

For your XP machine, use the "Fix it" button and everything will be done automatically.

For your W-7 machine, follow the "code 39 error" article in the CD/DVD FAQ for Vista.

If you still need help, do me a favor and describe the exact problem you are having or start a new thread. Please keep in mind that an iTunes problem is not really a CD/DVD problem. The best place to get help for iTunes problems is the iTunes forum (link in my toolbox below).

I have followed the Microsoft knowledge base to look into the registry settings for the CD drive and there is no mention of Upper or Lower Filters in the Registry.

I have trawled through the Dell community problems forums but not found anything which helps me directly, although some descriptions of problems closely relate to my problem, but not exactly. Most solutions refer to Windows XP.

How can I restore my Registry settings to include the required Upper and Lower Filter entries for the CD\DVD drive ?

Any help would be much appreciated. It's driving me crazy as I've tried many options but all have failed.